Wrench.



PATENTED OCT. 22.1907:

1). MANDL'.

WRENCH. APPLICATION FILED EAB.20,1907.

.. WASHINGTON, D c.

barren STATES DAVID MANDL, OF NEW YORK, N. Y.

WRENCH.

Specification of Letters Patent.

Patented Oct. 22, 1907.

Application filed March 20. 1907. Serial No. 363-354.

To all whom it may concern:

"5e it known that I. DAVID Maxim, a citizen of the United States, and a resident of the city of New York, n the county of New York and State of New York, United States of America, have invented certain new and useful Improvements in Wrenches, of which the i'olowing is a specification.

My invention relates to improvements in wrenches, especially :0 a combination wrench which embodies in one tool the advantages of several tools, and by means of which plumbers or steam fitters are enabled to work upon p'pcs and other articles. j

To this end my invention resides in the construction and arrangement of parts which I .will describe in the following specification and the novel features of which I will set forth in claims.

Referring to the drawings, Figure l is a side elevation of a wrench made according to my invention. Fig. 2 is a side elevation of a portion of my improved wrench sliowing the jaws arranged to be used as a monkeywrench. Fig. 3 is a side elevation of a portion oi" my improved wrench with certain parts removed, showing the manner in which this tool may be used as a strapwrench upon polished metal tubes. In Fig. i perspective views of a pair of removable jaws, which may be used in conjunction with other parts of my wrench, are shown. Fig. 5 designates a shackle which I use in conjunction with the other parts of my wrench.

Like characters of reference designate corresponding parts in all of the figures.

10 designates a handle to which a spindle or shank I1 is securely attached. The upper end of this shank is constructed to form one of the jaws 12 of the wrench. I3 designates a guiding head which is pivotally attached to the upper end of the shank 11 at 14 and normally maintained in the proper relative position to the shank by the springs 15 and 16. This guidinghead is arranged to support a sliding member 20, the lower portion of which is provided with screw-threads 2]. and the upper portion of which is constructed to form the upper.

jaw 22 of the wrench. A milled nut 23 within an opening in the guiding head 13, arranged for this purpose engages with the threaded portion of this sliding member 20 and forms means for adjusting the distance between the jaws 12 and 22 of the wrench, according to the size of the article to be engaged.

A pair of parallel inwardly flaring grooves 12 is provided in the jaw 12, and a similar pair of grooves22 is provided in the jaw 22. v

The portion of my improved wrench thus far described may be used as an ordinary square jawed wrench or monkey-wrench for engaging with certain articles such, for example, as a nut 24 as shown in Fig.

2. The distance between the jaws may be varied by moving the adjusting nut 23.

3O designates a removable jaw-face which is provided with a pair of flaring ribs 3]. on its upper surface. The lower surface of this removable jaw-iace is provided with a serrated surface 32. 33 designates a similar removable jaw-face, the lower portion of which is provided with a pair of parallel fiaring ribs 34 on its lower surface, and the upper surface of which is serrated as shown at 35. These removable jaw-faces 30 and 33 are arranged to be fitted into the grooves 22 and 12 in the jaws 22 and 12, respectively. The flaring ribs upon these removable jaw-faces are arranged to fit into the grooves tightly so that when in place these jawfaces form, substantially, solid bodies with the jaws proper. To render these parts more secure the grooves in the jaws and the flaring ribs above described may be slightly tapered.

Fig. 1 shows the tool as used with the removable jawfaces 30 and 33 in operative position, in which case the tool may be used as an ordinary Stillson wrench for use on rods or pipes.

40 designates a shackle which may be attached to the guiding head 13 by means of a pivot pin 41. This pivot pin is arranged to pass through the two ends of the shackle and through the guiding head 13. One end of the pivot pin 4]. maybe threaded and arranged to be screwed into one end of the shackle 40 thus holding the parts together. This construction is clearly illustrated in Fig. 5.

43 designates a flat strap preferably of textile fabric which is arranged to be attached to the portion 42 of pin 4]. This strap is preferably secured to the portion 42 of the shackle by means of a pair of snap buttons or clasps 44 such as are commonly used as glove fasteners. The strap may thus be readily removed be detached from the wrench when not in Lise.

When it is desired to use the strap for the purpose of grasping an article, the movable member 20 with its adjusting nut 23 may be removed from the wrench, the strap 4&3 placed about the article such, for example; as a pipe 45, as is shown in Fig. 3*and the free end of the strap caught between the portion of the strap which encircles the shackle and the jaw-face 12 The shank 11 may be used to obtain a powerful leverage upon the strap, and thus the pipe 45 may be tightly squeezed thereby and be made to turn by the operator. This method of turning a pipe or similar article is desirable in cases where the surface of the article is polished or plated, as it may be acted upon readily by the wrench without any danger of marring the shackle, which portion is parallel with the pivot from the shackle, or, if desired, the shackle itself may.

the surface. When my wrench is thus used as a strapwrench the removable jaw-face 33 may be removed from the jaw 12 as it is serrated, but it is preferable to leave it in place as its serrated surface aids in holding the strap and prevents it from slipping. It may be seen that the strap itself nearly surrounds the entire circumference of the pipe 45 so that the purchase upon the pipe is an excellent one. This is the preferred manner of using my tool as a strap wrench, but it is not necessary to remove the sliding member 20 and the upper jaw in order to use the strap, the free end of the strap may be used over the top of the upper jaw, in which case the nut 23 may be used to raise the upper jaw and to thus tighten the strap about a pipe,

The advantages of my invention are apparent for, by the use of a single tool one is able to accomplish the work for which three separate tools were required hitherto. The parts which are used for changing the Wrench from one use to another do not in any way interfere with each other, and the tool itself is simple in 20 construction and is strong and durable.

What 1 claim is.

1. A wrench having a jaw-carrying head, a guiding head pivoted thereto with its front face at the rear of the jaw face, a shackle and a flexible strap connected thereby to 25 the guiding head whereby the free end of the strap, when in use as a wrench, will be bent about a corner of the jaw and held compressed on both sides of the bending poin A wrench having a jaw-carrying head, a guiding head for a supplemental jaw pivoted thereto with its front face at the rear of the jaw face, a shackle and a flexible strap connected thereby to the guiding head whereby the free end of the strap, when in use as a wrench. will be bent about a corner of the jaw and held compressed on both sides of the bending point In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

DA VII) MANDL.

Witnesses V Gnsuuu'n HAn'rMAN, HUGO Lnvr. 

